How many skill points do Dual Blades have to throw around on each job advance?

If you start at lv1 it's easy to just go until you get the quests for advancement [if they are quests still, that is]. If you started at 50 it's harder to guess what goes where. for my pre-made DB from the first time they did this I just skipped I and started my points in whatever the next one was with booster and mastery.
No I don't know the specific SP values for each job either.